Class ViewportExtensions

Inheritance

object

ViewportExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Mapsui.Extensions

Assembly: Mapsui.dll

Syntax

public static class ViewportExtensions

Methods

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HasSize(Viewport)

True if Width and Height are not zero

Declaration

public static bool HasSize(this Viewport viewport)

Parameters

Type	Name	Description
Viewport	viewport

Returns

Type	Description
bool

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IsRotated(Viewport)

IsRotated is true, when viewport displays map rotated

Declaration

public static bool IsRotated(this Viewport viewport)

Parameters

Type	Name	Description
Viewport	viewport

Returns

Type	Description
bool

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ScreenToWorld(Viewport, ScreenPosition)

Converts a point in screen pixels to one in screen units, respecting rotation

Declaration

public static MPoint ScreenToWorld(this Viewport viewport, ScreenPosition screenPosition)

Parameters

Type	Name	Description
Viewport	viewport
ScreenPosition	screenPosition	Coordinate in screen units

Returns

Type	Description
MPoint	MPoint in world units

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ScreenToWorld(Viewport, double, double)

Converts X/Y in screen pixels to a point in screen units, respecting rotation

Declaration

public static MPoint ScreenToWorld(this Viewport viewport, double screenX, double screenY)

Parameters

Type	Name	Description
Viewport	viewport	The viewport used to calculate the transformation
double	screenX	Screen position x coordinate
double	screenY	Screen position y coordinate

Returns

Type	Description
MPoint	MPoint in world units

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ScreenToWorldXY(Viewport, double, double)

Converts X/Y in screen pixels to a point in screen units, respecting rotation

Declaration

public static (double worldX, double worldY) ScreenToWorldXY(this Viewport viewport, double screenX, double screenY)

Parameters

Type	Name	Description
Viewport	viewport
double	screenX	Screen position x coordinate
double	screenY	Screen position y coordinate

Returns

Type	Description
(double x, double y)	Tuple of x and y in world coordinates

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ToExtent(Viewport)

Calculates extent from the viewport.

Declaration

public static MRect ToExtent(this Viewport viewport)

Parameters

Type	Name	Description
Viewport	viewport

Returns

Type	Description
MRect

Remarks

This MRect is horizontally and vertically aligned, even if the viewport is rotated. So this MRect perhaps contain parts, that are not visible.

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ToSection(Viewport)

IsRotated is true, when viewport displays map rotated

Declaration

public static MSection ToSection(this Viewport viewport)

Parameters

Type	Name	Description
Viewport	viewport

Returns

Type	Description
MSection

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WorldToScreen(Viewport, MPoint)

Converts X/Y in world units to a point in device independent unit (or DIP or DP), respecting rotation

Declaration

public static ScreenPosition WorldToScreen(this Viewport viewport, MPoint worldPosition)

Parameters

Type	Name	Description
Viewport	viewport
MPoint	worldPosition	Coordinate in world units

Returns

Type	Description
ScreenPosition	MPoint in screen pixels

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WorldToScreen(Viewport, MRect)

Transforms the MRect from world coordinates to screen coordinates. Note, that an MRect always represents and unrotated box. If the Viewport is rotated this will result in an unrotated box that encompasses the rotated transformation.

Declaration

public static MRect WorldToScreen(this Viewport viewport, MRect rect)

Parameters

Type	Name	Description
Viewport	viewport	Viewport
MRect	rect	The MRect to transform

Returns

Type	Description
MRect	Transformed rect

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WorldToScreen(Viewport, double, double)

Converts X/Y in world units to a point in device independent units (or DIP or DP), respecting rotation

Declaration

public static ScreenPosition WorldToScreen(this Viewport viewport, double worldX, double worldY)

Parameters

Type	Name	Description
Viewport	viewport	The viewport used to calculate the transformation
double	worldX	X coordinate in world units
double	worldY	Y coordinate in world units

Returns

Type	Description
ScreenPosition	MPoint in screen pixels

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WorldToScreenXY(Viewport, double, double)

Converts X/Y in world units to a point in device independent units (or DIP or DP), respecting rotation

Declaration

public static (double screenX, double screenY) WorldToScreenXY(this Viewport viewport, double worldX, double worldY)

Parameters

Type	Name	Description
Viewport	viewport
double	worldX	X coordinate in world units
double	worldY	Y coordinate in world units

Returns

Type	Description
(double x, double y)	Tuple of x and y in screen coordinates